User tips:
1. Slide the phone into the battery case. Make sure that the phone is well connected to the USB connecter of the battery case. Then you can start to use the phone.
2. Charging for the phone: just press the power button on the back of the battery case to start charging. And press the power button again to stop charging.
3. When you charge the battery case with the phone attached, the battery case will be charged. If you would like to charge the phone first, you have to turn on the power button on the back of the battery case. When the phone is fully charged, the battery case will be charged next.
Our advantage:
SAJI iPhone 7/8 Plus battery case can perfectly compatible with charge and data transfer.
Product specification
Capacity: 4000mAh Li-Polymer rechargeable battery
Output:5V/1A, Input:5V/1A
Features:
Ultra slim and lightweight design
LED power indicator can let you know the level of the battery.
Easy to install
Provide more power to play more games, video, music.
- Perfectly compatible with Lightning earphones, lightning charge and data transfer.
- Powerful 4000mAh Li-polymer rechargeable battery can charge iPhone 7 Plus/8 Plus 120% more.
- Safety use certified, Integrated circuit design, effectively avoid shorting circuit or overcharge even under extreme conditions of wrong operation.
- Ultra slim and light design, just added 3mm at most thick point, but can protect your phone from scratches,drop and other daily wear, tear.
- Easy to use, just slide your iPhone directly to the case, then press the switch button for three seconds to charge.
- Perfectly compatible with Lightning earphones, lightning charge and data transfer.
- Powerful 4000mAh Li-polymer rechargeable battery can charge iPhone 7 Plus/8 Plus 120% more.
- Safety use certified, Integrated circuit design, effectively avoid shorting circuit or overcharge even under extreme conditions of wrong operation.
- Ultra slim and light design, just added 3mm at most thick point, but can protect your phone from scratches,drop and other daily wear, tear.
- Easy to use, just slide your iPhone directly to the case, then press the switch button for three seconds to charge.